.back a{
    display: block;
    width:80px;
    height:30px;
    border:1px solid #777a85;
    font:18px/30px "微软雅黑";
    color: #333;
    text-align: center;
    margin:0 20px 20px;
    border-radius: 5px;
}
.look-tong{
    padding:0 20px;
}
.tong{
    font:bold 18px/24px "微软雅黑";
    color:#333;
    padding:0 0 10px 0;
}
.info li{
    float: left;
    width:250px ;
    padding:0 80px 0 0;
    font:14px/30px "微软雅黑";
    color: #333;
}
table{
    border-collapse: collapse;
    width:100%;

}
table th,table td{
    border:1px solid #999;
}
.look-shaicha{
    width:800px;
    height:600px;
    overflow-y: scroll;
    position: fixed;
    left:50%;
    top:50%;
    margin:-300px 0 0 -400px;
    display: none;
    background: #fff;
}

